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Online visualization of 3D city model using CityGML and X3DOM / B. Mao in Cartographica, vol 46 n° 2 (June 2011)
[article]
Titre : Online visualization of 3D city model using CityGML and X3DOM Type de document : Article/Communication Auteurs : B. Mao, Auteur ; Yifang Ban, Auteur Année de publication : 2011 Article en page(s) : pp 109 - 114 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] Ajax
[Termes IGN] CityGML
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] visualisation 3D
[Termes IGN] web mapping
[Termes IGN] X3DRésumé : (Auteur) This article proposes a novel framework for online visualization of 3D city models. CityGML is used to represent the city models, based on which 3D scenes in X3D are generated, then dynamically updated to the user side with AJAX and visualized in WebGL-supported browsers with X3DOM. The experimental results show that the proposed framework can easily be implemented using widely supported major browsers and can efficiently support online visualization of 3D city models in small areas. For the visualization of large volumes of data, generalization methods and multiple-representation data structure should be studied in future research. Numéro de notice : A2011-233 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.3138/carto.46.2.109 En ligne : https://doi.org/10.3138/carto.46.2.109 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31011
in Cartographica > vol 46 n° 2 (June 2011) . - pp 109 - 114[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 031-2011021 RAB Revue Centre de documentation En réserve L003 Disponible How many 3D city models are there? A typological try / M. Jahnke in Cartographic journal (the), vol 48 n° 2 (May 2011)
[article]
Titre : How many 3D city models are there? A typological try Type de document : Article/Communication Auteurs : M. Jahnke, Auteur ; Jukka Mathias Krisp, Auteur ; H. Kumke, Auteur Année de publication : 2011 Conférence : ICC 2011, 25th International Cartographic Conference and 15th ICA General Assembly 03/07/2011 08/07/2011 Paris France OA Proceedings Article en page(s) : pp 124 - 130 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] capacité de stockage
[Termes IGN] densité d'information
[Termes IGN] information sémantique
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] niveau d'abstraction
[Termes IGN] qualité des données
[Termes IGN] segmentation d'image
[Termes IGN] texturage
[Termes IGN] topologie
[Termes IGN] visualisation 3DRésumé : (Auteur) Three-dimensional (3D) city models are intended to represent the geometry along with the appearance of the reality. In some cases, photos are precisely mapped as texture onto the geometric model, which then renders a realistic impression of the underlying environment. In other cases, the models are visualized in a more abstract way. This paper is dedicated to investigating the relation of level of abstraction, information density and storage capacity for the representation of a 3D city model. Increasing the level of abstraction usually leads to the decrease of information density to be processed. Accordingly, the general storage capacity will decrease as well. Since a higher level of abstraction is less bound to photorealistic aspects, it may allow further semantic information to be accommodated in the visualisation process. If the level of abstraction in a city model increases in a well-controlled way so that the characteristic features are enhanced while non-relevant information is inhibited, the user’s cognitive load during task completion may be reduced. This implies an increased efficiency of information communication. Using image segmentation algorithms, the elements within a facade per unit of area are successively reduced while preserving the characteristic structures within the image. The segmented image holds the sufficient information to be recognized in the environment. We treat the three concepts, level of abstraction, information density and storage capacity, as fundamental variables for the visualisation of building facades. To deal with these concepts, we organizing them on a continuum, which enables us to find a tradeoff between a potential loss of information and the level of usage for various tasks. Numéro de notice : A2011-263 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/1743277411Y.0000000010 Date de publication en ligne : 22/11/2013 En ligne : https://doi.org/10.1179/1743277411Y.0000000010 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31041
in Cartographic journal (the) > vol 48 n° 2 (May 2011) . - pp 124 - 130[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 030-2011021 RAB Revue Centre de documentation En réserve L003 Disponible Topologically consistent 3D city models obtained by extrusion / Hugo Ledoux in International journal of geographical information science IJGIS, vol 25 n° 4-5 (May 2011)
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Titre : Topologically consistent 3D city models obtained by extrusion Type de document : Article/Communication Auteurs : Hugo Ledoux, Auteur ; Martijn Meijers, Auteur Année de publication : 2011 Article en page(s) : pp 557 - 574 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] CityGML
[Termes IGN] intégrité topologique
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] programmation par contraintes
[Termes IGN] Triangulated Irregular Network
[Termes IGN] triangulation de DelaunayRésumé : Auteur) One of the simplest methods to construct a 3D city model is to extrude building footprints to obtain “block-shaped" polyhedra representing buildings. While the method is well-known and easy to implement, if the 2D topological relationships between the footprints are not taken into account, the resulting 3D city models will not necessarily be topologically consistent (i.e. primitives shared by 3D buildings will be duplicated and/or intersect each others). As a result, the model will be of little use for most applications, besides visualisation that is. In this paper, we present a new extrusion procedure to construct topologically correct 3D city models. It is based on the use of a constrained triangulation, is conceptually simple, and offers great flexibility to create city models in different formats (e.g. CityGML or a surface-based representation). We have implemented the procedure, tested it with real-world datasets, and validated it. Numéro de notice : A2011-566 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1080/13658811003623277 En ligne : http://dx.doi.org/10.1080/13658811003623277 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79398
in International journal of geographical information science IJGIS > vol 25 n° 4-5 (May 2011) . - pp 557 - 574[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-2011032 RAB Revue Centre de documentation En réserve L003 Disponible 079-2011031 SL Revue Centre de documentation Revues en salle Disponible 3D et relief à tous les étages / C. Gladieux in Géomatique expert, n° 79 (01/03/2011)
[article]
Titre : 3D et relief à tous les étages Type de document : Article/Communication Auteurs : C. Gladieux, Auteur ; Jean-Marie Séïté, Auteur Année de publication : 2011 Article en page(s) : pp 6 - 9 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] architecture
[Termes IGN] Bâti-3D
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] modélisation 3D
[Termes IGN] simulation 3D
[Termes IGN] urbanisme
[Termes IGN] visualisation 3DRésumé : (Auteur) Il faisait très beau sur Monaco en ce début février pour cette nouvelle édition d'Imagina, l'évènement regroupant les spécialistes de la simulation et de la visualisation 3D. Un salon cette année clairement orienté architecture et urbanisme avec de nombreux stands touchant peu ou prou ce secteur d'activité. Numéro de notice : A2011-118 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30898
in Géomatique expert > n° 79 (01/03/2011) . - pp 6 - 9[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 265-2011021 RAB Revue Centre de documentation En réserve L003 Disponible IFN-001-P001267 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Aggregation of LoD 1 building models as an optimization problem / R. Guercke in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 2 (March - April 2011)
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Titre : Aggregation of LoD 1 building models as an optimization problem Type de document : Article/Communication Auteurs : R. Guercke, Auteur ; T. Götzelmann, Auteur ; Claus Brenner, Auteur ; Monika Sester, Auteur Année de publication : 2011 Article en page(s) : pp 209 - 222 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] agrégation de détails
[Termes IGN] généralisation automatique de données
[Termes IGN] hauteur du bâti
[Termes IGN] méthode heuristique
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] optimisation (mathématiques)
[Termes IGN] reconstruction 3D du bâtiRésumé : (Auteur) 3D city models offered by digital map providers typically consist of several thousands or even millions of individual buildings. Those buildings are usually generated in an automated fashion from high resolution cadastral and remote sensing data and can be very detailed. However, not in every application such a high degree of detail is desirable. One way to remove complexity is to aggregate individual buildings, simplify the ground plan and assign an appropriate average building height. This task is computationally complex because it includes the combinatorial optimization problem of determining which subset of the original set of buildings should best be aggregated to meet the demands of an application. In this article, we introduce approaches to express different aspects of the aggregation of LoD 1 building models in the form of Mixed Integer Programming (MIP) problems. The advantage of this approach is that for linear (and some quadratic) MIP problems, sophisticated software exists to find exact solutions (global optima) with reasonable effort. We also propose two different heuristic approaches based on the region growing strategy and evaluate their potential for optimization by comparing their performance to a MIP-based approach. Numéro de notice : A2011-074 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2010.10.006 En ligne : https://doi.org/10.1016/j.isprsjprs.2010.10.006 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30855
in ISPRS Journal of photogrammetry and remote sensing > vol 66 n° 2 (March - April 2011) . - pp 209 - 222[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2011021 SL Revue Centre de documentation Revues en salle Disponible Automatic reasoning for geometric constraints in 3D city models with uncertain observations / S. Loch-Dehbi in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 2 (March - April 2011)PermalinkCity model enrichment / P. Smart ; J. Quinn ; C. Jones in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 2 (March - April 2011)PermalinkA multiple representation data structure for dynamic visualisation of generalised 3D city models / B. Mao in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 2 (March - April 2011)PermalinkTiltan's automated geo-mapping (AGM) system: A highly integrated airborne image data acquisition & processing system / Gordon Petrie in Geoinformatics, vol 14 n° 2 (01/03/2011)Permalinkvol 66 n° 2 - March - April 2011 - Quality, scale and analysis aspects of urban city models (Bulletin de ISPRS Journal of photogrammetry and remote sensing) / Monika SesterPermalink3D City Models: Supporting Tool for Urban Planning and Design / E. Parmehr in GIM international, vol 25 n° 2 (February 2011)PermalinkContributions to the 3D city modeling. 3D polyhedral building model reconstruction from aerial images & 3D facade modeling from terrestrial 3D point cloud and images / Karim Hammoudi (2011)PermalinkPermalinkGenerating virtual 3D model of urban street facades by fusing terrestrial multi-source data / Karim Hammoudi (2011)PermalinkHow to achieve consistency for 3D city models / G. Groger in Geoinformatica, vol 15 n° 1 (January 2011)Permalink